I started playing around the the preview bits of the .NET 3.0 SDK. Now every .NET Core project I compile with VS Code, Visual Studio or the .NET CLI tries to use that preview version of the SDK.
How can I make this an opt in choice on my whole machine, i.e. always use the latest stable version of the SDK (whatever version that might be) and only use the preview SDK when I explicitly say so in the local global.json of the particular project.
Update: Maybe global.json is not the right approach? How could I play with preview SDKs in isolation without them affecting my whole machine?